my faucet does not have an adapter I cant screw anything off it has a detachable sprayer and a faucet all in one
Those can almost always be adapted. The standard size is a 3/8"FPT to Garden Hose thread. The sprayer head should unscrew somewhere.
Also, making a water changer is infinitely cheaper than buying one. All you need is about $15 in parts
6' of 1" PVC. (I think that's the smallest piece you can buy)
Some PVC glue/primer.
2 - 90 degree 1" PVC elbows
1 - 1" PVC cap
1 - 1" PVC end to 1/2"MPT
Sink Threads to Garden Hose adapter
1 - Garden Hose Thread to 1/2"MPT
2 - 1/2" FPT to 3/8" barb
3/8" hose however far it is from your tank to the water source.
The connection to your sink may vary based on the style sink you have. as long as your tank water level is higher than your sink drain the siphon will start automatically without the fancy flow a Python says you need.
This is the tank end of the one I built recently for my new 55g...
I drilled a lot of holes in the part that goes in the tank. The syphon will stop flowing automatically so I don't have to watch it and it empties 30% every time without me babysitting.
Also for water temperature monitoring at the water source...